README.md: objectives of sessions 1

README.md

+# R formation
+
+## session 1
+In this session we play-back the steps of the creation of an Exel table 
+
+- numerical variable creation
+- numerical opperations
+- string creatation
+- variable concatenation and variable type: paste0, typeof
+- vector : lenght, head, summary
+- data.frame : dim, ncol, nrow
+- matrix
+- list